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Home > Stainless Steel Tubing > Stainless Steel 446 Tubing
Stainless Steel 446 Tubing is a ferritic, high-chromium steel that normally has 23–27% chromium, low carbon (≤0.2%), and trace amounts of silicon, manganese, and molybdenum. This composition provides remarkable resistance to scaling and oxidation at high temperatures. Tensile strength ranges from 415 to 620 MPa, yield strength is approximately 275 MPa, and elongation is roughly 20%. For furnace parts, heat exchangers, and other applications needing both thermal durability and corrosion resistance in harsh industrial environments, SS 446 is perfect because it maintains structural stability and corrosion resistance at temperatures above 1000°C.
Stainless Steel 446 tubing contains high chromium (23-27%) and low carbon, providing excellent oxidation and corrosion resistance at elevated temperatures. Its mechanical properties include a tensile strength of 450 MPa, yield strength of 275 MPa, and elongation of 20%. This alloy resists scaling up to 1100°C and offers good resistance to sulfuric and nitric acids. The advantages of SS 446 tubing include superior durability in extreme environments, high thermal resistance, and excellent performance in corrosive conditions, making it ideal for high-temperature industrial applications.
| Specifications | ASTM A/ASME SA213 / A249 / A269 |
| Dimensions | ASTM, ASME and API |
| SS 446 Tubes Size | 10.29 OD (mm) – 762 OD (mm) |
| Thickness | 0.35 OD (mm) to 6.35 OD (mm) in thickness ranging from 0.1mm to 1.2mm. |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Type | Seamless / ERW / Welded / Fabricated |
| Form | Round Tubes, Custom Tubes, Square Tubes, Rectangular Tubes, “U” Shape, Hydraulic Tubes |
| Length | Single Random, Double Random & Cut Length. |
| End | Plain End, Beveled End, Treaded |
| Grade | 446 | |
|---|---|---|
| min | max | |
| C | – | 0.20 |
| Mn | – | 1.5 |
| Si | – | 0.75 |
| P | – | 0.040 |
| S | – | 0.030 |
| Cr | 23.0 | 30.0 |
| Mo | – | – |
| Ni | – | 0.50 |
| N | 0.10 | 0.25 |
| Grade | 446 | |
|---|---|---|
| Tensile Strength (MPa) min | 485 | |
| Yield Strength 0.2% Proof (MPa) min | 275 | |
| Elongation (% in 50mm) min | 20 | |
| Hardness | Rockwell B (HR B) max | 92 |
| Brinell (HB) max | 201 | |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
By choosing Stainless Steel 446 Tubing from Vipul Pipes and Tubes, you are assured of superior quality and durability. These tubes provide outstanding corrosion resistance and strength, making them ideal for a wide range of industrial applications. Our dedication to excellent service and dependable delivery ensures customer satisfaction every time. With our expertise in stainless steel products, we deliver top-tier solutions customized to meet your specific requirements.
Vipul Pipes and Tubes, a leading supplier of Stainless Steel 446 Tubing in Chennai, India, provides a wide selection of premium pipes and tubes for diverse industrial applications. With a vast inventory and a strong focus on delivering outstanding service, they are the preferred choice for stainless steel products in the region.
At Vipul Pipes and Tubes, we provide custom sizes of Stainless Steel 446 Tubing to meet your exact specifications. Our dedicated team is here to offer tailored solutions for all your piping and tubing needs. For more information, feel free to reach out to us at sales@brydonpipesandtubes.co.uk.
High temperatures and highly oxidising conditions are the perfect conditions for stainless steel 446 tubing. Because of its exceptional resistance to oxidation, sulfidation, and scaling at high temperatures, it is frequently found in furnace components, heat exchangers, incinerators, kilns, and thermal processing equipment. Additionally, SS 446 tubing is used in cement production, power generation facilities, and the petrochemical industry, all of which are subject to continuous heat and corrosive gas exposure. It is appropriate for use in cyclic thermal conditions due to its resistance to thermal fatigue and embrittlement. Because of its long service life and dependability, it is also utilised in recuperators and radiant tubes for industrial heating systems.
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